GPFS administration security

Before administering your GPFS file system, make certain that your system has been properly configured for security.

This includes:
  • Assigning root authority to perform all GPFS administration tasks except:
    • Tasks with functions limited to listing GPFS operating characteristics.
    • Tasks related to modifying individual user file attributes.
  • Establishing the authentication method between nodes in the GPFS cluster.
    • Until you set the authentication method, you cannot issue any GPFS commands.
  • Designating a remote communication program for remote shell and remote file copy commands:
    • The default remote communication commands are scp and ssh. You can designate any other remote commands if they have the same syntax.
    • Regardless of which remote commands have been selected, the nodes that you plan to use for administering GPFS must be able to execute commands on any other node in the cluster without the use of a password and without producing any extraneous messages.